در ايران CONTARINIA PYRIRORA REILEY )DIP: CECIDOMIIDAE زيست شناسي پشه گلابي

Biology of pear midge Contarinia pyrivora Riley (Dip: Cecidomyiidae) in Iran

Pear midge (Contarinia pyrivora Riley: Cecidomyiidae), is an insect that damage young pear fruits .It is the first record of this insect from Iran .This pest has one generation per year and overwinter as pupae at the depth of 5-8 cm in the soil . Under natural conditions,the adults appear in mid April when pears are flowering . Oviposition takes place on the flowers particularly on anthers. The eggs are whitish and very small in size, incubation period of which is about 3days. The larvae feed on seeds of the young fruits.The infested fruits are longer than uninfested ones. No. of larvae counted in each fruit were 12-15.